class CommonUtils{
  static bool checkPhoneValid(String? phone){
    if (phone == null || phone.isEmpty){
      return false;
    }
    String regexPhoneNumber =  "^((13[0-9])|(15[^4])|(166)|(17[0-8])|(18[0-9])|(19[8-9])|(147,145))\\d{8}\$";
    return RegExp(regexPhoneNumber).hasMatch(phone);
  }
}